1121052103 has 4 divisors (see below), whose sum is σ = 1131936208. Its totient is φ = 1110168000.

The previous prime is 1121052091. The next prime is 1121052109. The reversal of 1121052103 is 3012501211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3012501211 = 41813 ⋅72047.

It is a cyclic number.

It is not a de Polignac number, because 1121052103 - 2⁵ = 1121052071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121052109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5441898 + ... + 5442103.

It is an arithmetic number, because the mean of its divisors is an integer number (282984052).

Almost surely, 2^1121052103 is an apocalyptic number.

1121052103 is a deficient number, since it is larger than the sum of its proper divisors (10884105).

1121052103 is a wasteful number, since it uses less digits than its factorization.

1121052103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10884104.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1121052103 is about 33482.1161666941. The cubic root of 1121052103 is about 1038.8238994711.

Adding to 1121052103 its reverse (3012501211), we get a palindrome (4133553314).

The spelling of 1121052103 in words is "one billion, one hundred twenty-one million, fifty-two thousand, one hundred three".